东北大学学报（自然科学版）

东北大学学报(自然科学版) ›› 2006, Vol. 27 ›› Issue (11): 1244-1246.DOI: -

• 论著 • 上一篇    下一篇

钢包工作衬用无碳预制块的研制与应用

陈敏;王楠;于景坤;刘伟;   

  1. 东北大学材料与冶金学院;东北大学材料与冶金学院;东北大学材料与冶金学院;鞍钢新钢铁公司第二炼钢厂 辽宁沈阳110004;辽宁沈阳110004;辽宁沈阳110004;辽宁鞍山114000
  • 收稿日期:2013-06-23 修回日期:2013-06-23 出版日期:2006-11-15 发布日期:2013-06-23
  • 通讯作者: Chen, M.
  • 作者简介:-
  • 基金资助:
    国家自然科学基金;;

Development and application of carbon-free precast block for ladle lining

Chen, Min (1); Wang, Nan (1); Yu, Jing-Kun (1); Liu, Wei (2)   

  1. (1) School of Materials and Metallurgy, Northeastern University, Shenyang 110004, China; (2) The Second Steelmaking Plant, Anshan Iron and Steel Group Corporation, Anshan 114000, China
  • Received:2013-06-23 Revised:2013-06-23 Online:2006-11-15 Published:2013-06-23
  • Contact: Chen, M.
  • About author:-
  • Supported by:
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摘要： 以高铝刚玉为骨料,电熔镁砂、氧化铝微粉和氧化硅微粉为基质料,研制了钢包工作衬用无碳预制块·结果表明:MgO与Al2O3反应形成尖晶石伴随的体积膨胀效应使预制块获得了较小的烧后线收缩率·与传统的Al2O3-MgO-C砖相比,由氧化物微粉结合的预制块具有较低的显气孔率,较高的高温抗折强度和良好的抗渣性·现场实际应用结果表明,用预制块砌筑的钢包工作衬具有较好的保温效果,能够有效地减小精炼过程中钢水的温降,并可以有效地防止钢水增碳,有利于低碳钢和超低碳钢的生产·

关键词: 无碳预制块, 耐火材料, 钢包工作衬, 抗渣性, 保温

Abstract: A carbon free precast block was developed by using fused high-Al corundum as aggregate and electro-melting magnesia and ultra-fine Al2O3 and SiO2 powders as matrix materials. A small linear shrinkage of the precast block was found through the volume expansion due to the spinel which was produced from the reaction of MgO with Al2O3 in matrix. The precast block shows lower apparent porosity and higher hot modulus of rupture and slag corrosion resistance in comparison to conventional Al2O3-MgO-C brick. Practical applications revealed that bonding the precast blocks together as ladle lining can provide better thermal insulation which will effectively reduce the temperature drop of molten steel in refining process and prevent molten steel from carburization. The carbon-free precast block is thus regarded as a new type of ladle lining material that is beneficial to the production of low-carbon and ultra-low-carbon steel.

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